FUMAK Aquarium Air Pump, USB Rechargeable Lithium Battery Powered Portable Air Pump for Fish Tanks up to 60 Gallons, AC/DC Dual

This portable aquarium air pump works as a standard aerating / oxygen pump for aquariums, and an emergency pump when there is a power outage; its also perfect to work as a fishing pump for fishing hobbyists. The package includes: 1 x air pump, 1 x airline tubing, 1 x check valve, 1 x air stone Technical Data: Power: 1Watt Flow rate: 11-24GPH (0.7-1.5LPM)  Air pressure: 0.025MPa Fits 10-60 Gallon aquariums The Features: PORTABLE WITH COMPACT SIZE: The Product dimension:3.66 x 2.56 x 1.69  inches, very easy to carry for fishing. SUPER SILENT: the noise level can be as low as 30dB.  AUTOMATIC SWITCH OF AC/DC: The pump can work as a standard air pump with the AC power supply, while when there is a power cut, it will switch automatically to the DC power supply (powered by the lithium battery)  FLOW ADJUSTABLE: 2 flow rates available, controlled easily by pressing the +/- button RECHARGEABLE: This pump is with an in-built rechargeable lithium battery, i.e it can be charged by wall charger, power bank, or laptop. The 2600mAh battery can support the air pump to run for 20 hours continuously  PERIODICAL WORKING: The pump is also designed with periodical operation feature to save power consumption. In periodical status, the lithium battery can last for 30 hours. When the pump works in low output status, it can even last as long as 40 hours ALL-IN-ONE: All the accessories needed to run an air pump are included in the package: 1 x airline tubing, 1 x check valves, 1 x air stones EXTENSIVE APPLICATIONS: It can be used for both fresh and marine water.